Author Topic: Weird Engine Sound  (Read 2642 times)

Crunk3

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Weird Engine Sound
« on: January 15, 2009, 08:49:37 PM »
Started happening a little while ago but thought nothing of it till someone today told me it didn't sound right.
sounds almost like a popping sound i guess
Here is a video
It increases with engine speed and is still heard when engine is cold or warm
http://www.youtube.com/watch?v=SpDScfoW9gc
Sorry for shitty quality video but you can kinda hear the sound

xwill112x

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Weird Engine Sound
« Reply #1 on: January 15, 2009, 09:07:45 PM »
broken rocker arm?
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Ich liebe meinen E30

B318M42W

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Weird Engine Sound
« Reply #2 on: January 15, 2009, 09:42:55 PM »
sticking valve??? any influance in idle control/ smooth operation? lack of power? hesitation? check plug condition & compression???
just throwing ideas out there...
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bbarnumboy

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Weird Engine Sound
« Reply #3 on: January 15, 2009, 10:43:49 PM »
almost sounds like air getting through the spark plug, did you check them.  has the timing chain tensioner been changed?
1993 318is SC Twin Screw supercharger build in progress.

http://m42club.com/forums/showthread.php?t=14314

Crunk3

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Weird Engine Sound
« Reply #4 on: January 15, 2009, 10:56:26 PM »
I just tightened my spark plugs but one was kinda loose so when i was tightening it it would almost get tight then it would would go loose again
so i tightened it as much as possible and the sound stopped

bbarnumboy

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Weird Engine Sound
« Reply #5 on: January 16, 2009, 10:19:12 PM »
if it is getting loose after tightening it, then your plug hole is stripped and that is very bad. prob need a fix for that
1993 318is SC Twin Screw supercharger build in progress.

http://m42club.com/forums/showthread.php?t=14314